Betelgeuse star

About Betelgeuse star

• It is a red supergiant star with a distinctive orange-red hue.
• It is roughly 10 million years old and is much younger than the Sun.
• It is around 700 light-years away from the Earth.
• It is located in the Orion constellation.
• It is particularly easy to spot because of its brightness; it is often the tenth-brightest star in the sky.
• It is also one of the largest stars visible to the unaided eye.
• While it is large and bright, Betelgeuse isn't actually that hot, with a surface temperature of about 6,000 degrees Fahrenheit (over 3,300 degrees Celsius).
• Betelgeuse has been classified as a "semiregular variable star," which is a type of variable star that periodically waxes and wanes in brightness and occasionally undergoes irregular light changes.
• Betelgeuse, typically, has a 400-day cycle as well as a longer cycle that stretches about 5 years.

Q1) What is a constellation?

It is a recognizable and traditionally established group of stars in the night sky that appears to form a pattern or shape when observed from Earth. People have been identifying and naming constellations for thousands of years, and these patterns have played a significant role in various cultures, navigation, and astronomy.

Source: Scientists resolve the mystery behind sudden dimming of supergiant Betelgeuse star